[Jeffhs]

I looked at the picture of that set and saw a telephone sitting on top of it. Wouldn't that play heck with the purity, causing color splotches in the picture? The phone looks like a late '60s Trimline. Those phones, if I remember correctly, have the old-style electromagnetic ringers with a bell. When it rings, the magnetic field surrounding the ringer coils could magnetize the set's CRT. However, there may not really be that much of a problem if the set's cabinet is more than paper-thin plastic--but I doubt that very much. If this is a cheaply built TV from JC Penney or Montgomery Ward, et al. it probably does have a cabinet made of cheap, thin plastic that wouldn't shield the CRT from stray magnetism very well. If the set has an auto-degaussing system (as did most CRT sets from about the '90s going forward, until CRTs became obsolete), however, the degausser would probably correct any purity problems at power on before the raster appeared.